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Finding the Fourth Proportional to 12,915,651, 19,375,857 and 5,343,207.24

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Solution

The fourth proportional to 12,915,651, 19,375,857 and 5,343,207.24 is: 8,015,795.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915,651 : 19,375,857 = 5,343,207.24 : x
  2. Step 2: Convert to fraction form
    12,915,651/19,375,857 = 5,343,207.24/x
  3. Step 3: Cross multiply
    12,915,651x = 19,375,857 × 5,343,207.24
  4. Step 4: Simplify right side
    12,915,651x = 103,529,219,403,604.69
  5. Step 5: Solve for x
    x = 103,529,219,403,604.69/12,915,651
  6. Step 6: Final answer
    x = 8,015,795.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.